I just installed this plugin for the first time and am having this issue (YouTube downscaled to 360p but I can send a higher-res version if needed):
https://www.youtube.com/watch?v=kNhsq2UQy3o
Only plugins enabled are TypeScript (6.0.5) and Linter (1.5.1). Atom is latest (1.0.11) and the problem persists across restarts.
There's also a light bulb that shows up by the line numbers on every single line, not sure if that's intended (it is kind of distracting!) Other than that, everything else seems to be working fine.